@article{ref1,
title="Affiliation and aggression in rats",
journal="Animal learning and behavior",
year="1976",
author="Taylor, G. T.",
volume="4",
number="2",
pages="139-144",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0090-4996",
doi="",
url="http://dx.doi.org/"
}